Altronix MaxFit3E, a versatile power supply system, offers a range of capabilities for access control and security applications. With its ability to provide 12VDC or 24VDC output voltage, it caters to diverse power requirements. The built-in charger supports sealed lead acid or gel-type batteries, ensuring uninterrupted power supply during AC failures. Featuring AC fail and battery fail supervision, the MaxFit3E enhances system reliability by providing real-time status monitoring.
Altronix MaxFit3E, a versatile power supply system, offers a range of capabilities for access control and security applications. With its ability to provide 12VDC or 24VDC output voltage, it caters to diverse power requirements. The built-in charger supports sealed lead acid or gel-type batteries, ensuring uninterrupted power supply during AC failures. Featuring AC fail and battery fail supervision, the MaxFit3E enhances system reliability by providing real-time status monitoring.
Rev. 021122 More than just power.TM
Installing Company: _______________ Service Rep. Name: __________________________________
Address: _____________________________________________ Phone #: __________________
MaxFit E Series
Single Power Supply
Expandable Power Systems
Models Include:
MaxFit3E
- 12VDC/24VDC @ 6A.
MaxFit5E
- 12VDC @ 10A.
MaxFit7E
- 24VDC @ 10A.
Installation Guide
- 2 - MaxiFit3E/MaxFit5E/MaxFit7E Expandable Power Systems Installation Guide
MaxFit E Series Overview:
Altronix MaxFit Expandable Power System provide system designers and installers with maximum power choices
and the highest levels of versatility. They provide 12VDC or 24VDC. The suit of features includes AC fail, low battery
and battery presence monitoring. All interconnecting equipment must be UL Listed. MaxFit enclosure offers ample
room for expanding access control systems and accommodates up to four (4) 12VDC/12AH batteries.
MaxFit E Series Configuration Chart:
Altronix
Model Number
115VAC 60Hz
Input Current
Input
Fuse
Rating
Battery
Fuse
Rating
Output Voltage Options
12VDC Output 24VDC Output
MaxFit3E 3.5A 5A/250V N/A 12VDC @ 6A 24VDC @ 6A
MaxFit5E 2.7A 5A/250V 15A/32V 12VDC @ 10A –
MaxFit7E 4.5A 5A/250V 15A/32V – 24VDC @ 10A
DC outputs for these power supplies are not power-limited. If a power-limited output is required in the end-product
application, DC output from the power supply must be connected to a separately Listed control unit or accessory board
that provides power-limited outputs. The product(s) providing the power-limited output(s) must be listed as appropriate
for the particular end-productapplication and wired in accordance with the products installation instructions. Class 1
wiring methods, separation of circuits, and proper fire-rated enclosures all must be considered when connecting the
DC output of the power supply to the end-product devices. The auxiliary outputs of these units are power-limited.
MaxFit E Series Features:
• Input: 115VAC, 60Hz.
• For output voltage and supply current refer to MaxFit E series Configuration Chart, pg. 2.
• Overvoltage protection.
• Built-in charger for sealed lead acid or gel type batteries.
- Maximum charge current is 0.7A for MaxFit3E and MaxFit5E power supply boards.
- Maximum charge current is 3.6A for MaxFit7E power supply board.
• Automatic switch over to stand-by battery when AC fails. Transfer to stand-by battery power is instantaneous
with no interruption.
• Green AC input and red DC output LED indicators on power supply board(s).
• AC fail supervision (form “C” contact rated @ 1A/28VDC).
• Battery fail and battery presence supervision (form “C” contact rated @ 1A/28VDC).
• For fuse ratings refer to MaxFit E series Configuration Chart, pg. 2.
• Short circuit and overload protection.
• Enclosure accommodates up to four (4) 12VDC/12AH batteries.
Enclosure dimensions (H x W x D): 20.5” x 16.5” x 6.25” (520.7mm x 419.1mm x 158.8mm).
MaxiFit3E/MaxFit5E/MaxFit7E Expandable Power Systems Installation Guide - 3 -
MaxFit E Installation Instructions:
Wiring methods shall be in accordance with the National Electrical Code/NFPA 70/NFPA 72/ANSI,
The Canadian Electrical Code, Part 1 and with all local codes and authorities having jurisdiction. The product must
be located indoors within the protected premises.
1. Mount unit in desired location. Mark and predrill holes in the wall to line up with the top three keyholes in
the enclosure. Install three upper fasteners and screws in the wall with the screw heads protruding. Place
the enclosure’s upper keyholes over the three upper screws; level and secure. Mark the position of the
lower three holes. Remove the enclosure. Drill the lower holes and install the three fasteners. Place the
enclosure’s upper keyholes over the three upper screws. Install the three lower screws and make sure to
tighten all screws (Enclosure Dimensions, pg. 8).
2. Connect unswitched AC power (115VAC 60Hz) to terminals marked [L, N] (Fig. 1a, pg. 4). Use 14 AWG
or larger for all power connections. Secure green wire lead to earth ground.
For Fire Alarm applications the outputs are “Special Applications” only.
Keep power-limited wiring separate from non power-limited wiring (115VAC 60Hz Input, Battery Wires).
Minimum 0.25” spacing must be provided.
CAUTION: Do not touch exposed metal parts.
Shut branch circuit power before installing or servicing equipment.
There are no user serviceable parts inside.
Refer installation and servicing to qualified service personnel.
3. Select desired DC output voltage by setting SW1 to the appropriate position (MaxFit3E) (Fig. 2a, pg. 4).
MaxFit5E power supply is factory set at 12VDC.
MaxFit7E power supply is factory set at 24VDC (Stand-by Battery Specifications, pg. 5).
4. Measure output voltage before connecting devices. This helps avoiding potential damage.
5. Connect devices or Altronix sub-assembly modules to be powered to the terminals marked [– DC +]
(Fig. 1h, pg. 4). Refer to page 2 for non power-limited applications.
6. For Access Control applications batteries are optional. When batteries are not used, a loss of AC will result
in the loss of output voltage. When the use of stand-by batteries is desired, they must be lead acid or gel
type. Connect battery to the terminals marked [– BAT + ] (Fig. 1g, pg. 4). Use two (2) 12VDC batteries
connected in series for 24VDC operation (battery leads included). Use batteries - Casil CL1270 (12V/7AH),
CL12120 (12V/12AH), CL12400 (12V/40AH), CL12650 (12V/65AH) batteries or UL recognized BAZR2
batteries of an appropriate rating.
7. Battery and AC Supervision outputs: It is required to connect supervisory trouble reporting devices to outputs
marked [AC FAIL, BAT FAIL] supervisory relay outputs marked [NC, C, NO] to appropriate visual notification
devices. Use 22 AWG to 18 AWG for AC Fail & Low/No Battery reporting.
8. For Access Control Applications: mount UL Listed tamper switch (Altronix Model TS112 or equivalent) at
the top of the enclosure. Slide tamper switch bracket onto the edge or the enclosure approx. 2” from the
right side (Fig. 3a, pg. 6). Connect tamper switch wiring to the Access Control Panel input or the appropriate
UL Listed reporting device.
9. Please ensure that the cover is secured with the provided key lock.
Wiring:
Use 18 AWG or larger for all low voltage power connections.
Note: Take care to keep power-limited circuits separate from non power-limited wiring (115VAC, Battery).
Maintenance:
Unit should be tested at least once a year for the proper operation as follows:
Output Voltage Test: Under normal load conditions the DC output voltage should be checked
for proper voltage level
(Power Supply Board Stand-by Battery Specifications, pg. 7).
Battery Test: Under normal load conditions check that the battery is fully charged, check
specified voltage at the battery terminals and at the board terminals marked
[+ BAT –] to ensure that there is no break in the battery connection wires.
Note: AL600ULXB and AL1012ULXB Power Supply Board maximum charge current is 0.7A.
AL1024ULXB2 Power Supply Board maximum charge current is 3.6A.
Expected battery life is 5 years, however it is recommended to change batteries within 4 years or less if necessary.
- 4 - MaxiFit3E/MaxFit5E/MaxFit7E Expandable Power Systems Installation Guide
Fig. 1 - ULXB Board Configuration
MaxFit3E Power Supply Board Output Voltage Settings:
Fig. 2
+ DC ---
BAT FAIL NC C NO NC C NO
+ BAT ---
AC FAIL
DCAC BAT
LG N
5A 250V
OFF --- 24V
ON --- 12V
1a 1b
1c***
1d**
1e*
ON
+ DC ---
SW1
OFF - 24V
ON - 12V
ON
Fig. 2a
ON
OFF - 24V
ON - 12V
MaxiFit3E/MaxFit5E/MaxFit7E Expandable Power Systems Installation Guide - 5 -
Power Supply Board LED Diagnostics:
LED Power Supply Status
Red (DC) Green (AC)
ON
ON
Normal operating condition.
ON
OFF
Loss of AC. Stand-by battery is supplying power.
OFF
ON
No DC output. Short circuit or thermal overload condition.
OFF
OFF
No DC output. Loss of AC. Discharged battery.
Red (Bat) Battery Status
ON Normal operating condition.
OFF Battery fail/low battery.
Terminal Identification:
Terminal Legend Function/Description
L, G, N Connect 115VAC to these terminals: L to hot, N to neutral (Fig. 1a, pg. 4).
+ DC – **
MaxFit3E: 12VDC or 24VDC @ 6A continuous output
(Non Power-Limited output) (Fig. 1d, pg. 4).
MaxFit5E: 12VDC @ 10A continuous output
(Non Power-Limited output) (Fig. 1d, pg. 4).
MaxFit7E: 24VDC @ 8A continuous, 10A in alarm (UL1481).
24VDC @ 10A (UL294) (Non Power-Limited output) (Fig. 1d, pg. 4).
AC FAIL
NO, C, NC
Used to notify loss of AC power, e.g.connect to audible device or alarm panel.
Relay normally energized when AC power is present. Contact rating 1A @ 28VDC.
AC or brownout fail is reported within 1 minute of event.
To delay reporting for up to 6 hrs., cut “AC Delay” jumper and reset power to unit
(Fig. 1b, pg. 4).
BAT FAIL
NO, C, NC
Used to indicate low battery condition, e.g. connect to alarm panel.
Relay normally energized when DC power is present. Contact rating 1A @ 28VDC.
A removed battery is reported within 1 minute.
Battery reconnection is reported within 1 minute.
Low battery threshold: approximately 21VDC (Fig. 1b, pg. 4).
+ BAT – ***
Stand-by battery connections (Fig. 1c, pg. 4).
MaxFit3E and MaxFit5E maximum charge current 0.7A.
MaxFit7E maximum charge current 3.6A.
** MaxFit5E terminals marked [– DC +]
*** MaxFit7E terminals marked [– BAT +]
Stand-by Battery Specifications:
Battery MaxFit3E MaxFit5E and MaxFit7E
7AH 10 Mins./6A 5 Mins./10A
12AH 30 Mins./6A* 30 Mins./10A*
40AH Over 4 Hours/6A* Over 2 Hours/10A*
65AH Over 4 Hours/6A* Over 4 Hours/10A*
*Only these configurations can be utilized in ULC-S319 installations.
MaxiFit3E/MaxFit5E/MaxFit7E Expandable Power Systems Installation Guide - 6 -
NEC Power-Limited Wiring Requirements:
Power-limited and non power-limited circuit wiring must remain separated in the cabinet. All power-limited circuit
wiring must remain at least 0.25” away from any non power-limited circuit wiring. Furthermore, all power-limited
circuit wiring and non power-limited circuit wiring must enter and exit the cabinet through different conduits. One
such example of this is shown below. Your specific application may require different conduit
knockouts to be used. Any conduit knockouts may be used. For power-limited
applications use of conduit is optional. All field wiring connections must be made
employing suitable gauge CM or FPL jacketed wire (or equivalent substitute).
Optional battery enclosure must be mounted adjacent to the power supply via Class 1
wiring methods. For Canadian installations use shielded wiring for all connections.
Note: Refer to wire handling drawing below for the proper way to install the
CM or FPL jacketed wire (Fig. 3b).
Fig. 3
AACM8(CB), ACMS8(CB)
LINQ8ACM(CB)
B
ACM4(CB), LINQ8PD(CB),
PD4UL(CB), PD8UL(CB),
MOM5, PDS8(CB), VR6
C PD16W(CB)
DNetWaySP3B, NetWay4EB,
NetWaySP4B, NetWaySP8B DC Output
(non power-limited)
Optional
Rechargeable
Stand-by Battery
for UL294
Applications
Note:
12V batteries
are required for
ULC-S319
installations.
Battery
(non power-
limited)
Input 115VAC, 60Hz
(non power-limited)
Supervisory Connections (power-limited)
CAUTION: When power supply board is set for 12VDC use
only one (1) 12VDC stand-by battery.
Connect red battery lead to the terminal marked [+ BAT] and to
the [positive (+)] terminal of the battery.
Connect black battery lead to terminal marked [BAT –] and to
the [negative (–)] terminal of the battery.
Keep power-limited wiring separate from non power-limited.
Use minimum 0.25" spacing.
12AH Rechargeable batteries are the largest batteries that
can fit in this enclosure.
A UL listed external battery enclosure must be
used if using the 40AH or 65AH batteries.
A
B
C
D
A
B
A
B
C
C
Power
Supply/
Charger
Tamper Switch
BAT FAIL NC C NO NC C NO AC FAIL
AC DC BAT
+BAT- + DC -
L G N
OFF - 24V
ON - 12V
ON
Fig. 3a
Tamper Switch
(included)
To Access Control Panel or
UL Listed Reporting Device
Edge of
Enclosure
Enclosure
External
Jacketed
Shield
Incorrect Wire
Handling
Correct Wire
Handling
Pull back
external jacketed
shield approx. 1/2”.
Wire
Insulation
Solid Copper
Conductors
Fig. 3b
- 7 - MaxiFit3E/MaxFit5E/MaxFit7E Expandable Power Systems Installation Guide
Notes:
- 8 - MaxiFit3E/MaxFit5E/MaxFit7E Expandable Power Systems Installation Guide
MaxFit Enclosure Dimensions (approximate):
20.5” x 16.5” x 6.25” (520.7mm x 419.1mm x 158.8mm)
20.50” (520.7mm)
8.75” (222.3mm)8.75” (222.3mm)
1.50” (38.1mm)
1.50” (38.1mm)
1.25” (31.8mm)
1.25” (31.8mm)
1.25” (31.8mm) 1.25” (31.8mm)
1.25” (31.8mm)
8.75” (222.3mm)8.75” (222.3mm)
1.50”
(38.1mm)
1.50”
(38.1mm)
6.25” (158.8mm)
1.25” (31.8mm)
1.25” (31.8mm)
7.00” (177.8mm) 7.00” (177.8mm)
7.00” (177.8mm) 7.00” (177.8mm)
1.25” (31.8mm)
1.25” (31.8mm)
16.50” (419.1mm)
1.25” (31.8mm)
0.75” (19.1mm)
0.569” (14.5mm)
1.00” (25.4mm)
1.25” (31.8mm)
Altronix is not responsible for any typographical errors.
––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––
140 58th Street, Brooklyn, New York 11220 USA | phone: 718-567-8181 | fax: 718-567-9056
website: www.altronix.com | e-mail: [email protected] | Lifetime Warranty
IIMaxFit3E/5E/7E Series B11V MEMBER
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Altronix MaxFit3E, a versatile power supply system, offers a range of capabilities for access control and security applications. With its ability to provide 12VDC or 24VDC output voltage, it caters to diverse power requirements. The built-in charger supports sealed lead acid or gel-type batteries, ensuring uninterrupted power supply during AC failures. Featuring AC fail and battery fail supervision, the MaxFit3E enhances system reliability by providing real-time status monitoring.
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